Dolichosyne sulcata Ponomarenko, 1969

Yan, Evgeny V., Beutel, Rolf G. & Ponomarenko, Alexander G., 2017, Ademosynidae (Insecta: Coleoptera): A new concept for a coleopteran key taxon and its phylogenetic affinities to the extant suborders, Palaeontologia Electronica 5 (8), pp. 1-22 : 9

publication ID	https://doi.org/ 10.26879/739
persistent identifier	https://treatment.plazi.org/id/038387B1-0057-6B77-FF54-FA12F33AFD3C
treatment provided by	Felipe
scientific name	Dolichosyne sulcata Ponomarenko, 1969
status

Treatment

Dolichosyne sulcata Ponomarenko, 1969 D. sulcata : Ponomarenko, 1969, p. 128

Figure 1.5-1.8 View FIGURE 1 , Figure 2.5-2.8 View FIGURE 2

Material. Holotype: PIN 2240 View Materials /274, beetle without anterior half of head and without legs; Middle Asia , Dzhailyaucho, Lower Triassic . Paratypes: PIN 2240 View Materials /2250, 2240/191, 2240/234, 2240/305 from same locality .

PIN 2240/2250, 2240/191, 2240/234, 2240/ 305 from same locality.

Revised description. Distal third of mandible distinctly curved. Eyes half as long as mandibles. Head capsule with pair of large supraantennal tubercules located near anterior margin of frons and separated by longitudinal ridges ( Figure 2.5 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 , l.r). Gular plate long, about one third of pronotal length, parallel-sided, with distinct posterior tentorial pits. Pronotum with longitudinal median depression ( Figure 2.5 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 , l.d). Propleurites straight on outer sides; intercoxal process as long as procoxae, slightly widening apically ( Figure 2.5 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 , pl1, i.p1). See measurements in Table 1.

Body more strongly elongated than in other species of the genus, four times as long as wide; mandibular apices more strongly curved; prosternal process only slightly widening apically, lateral projections absent.

Remarks. Pronotum and prosternum of holotype shifted from each other, thus appearing asymmetrical.